CN102304882A - Line rail symmetric turnout No 4.5 in urban rail transit engineering - Google Patents
Line rail symmetric turnout No 4.5 in urban rail transit engineering Download PDFInfo
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- CN102304882A CN102304882A CN201110213581A CN201110213581A CN102304882A CN 102304882 A CN102304882 A CN 102304882A CN 201110213581 A CN201110213581 A CN 201110213581A CN 201110213581 A CN201110213581 A CN 201110213581A CN 102304882 A CN102304882 A CN 102304882A
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Abstract
The invention provides a line symmetric turnout No. 4.5 in urban rail transit engineering, and the turnout is arrange on parking line rail in underground lines in the urban rail transit engineering. The structure of the symmetric turnout comprises a group of railroad switches, a group of frogs and connecting steel rails, wherein the group of railroad switches is connected with the group of frogs through the connecting steel rails so as to form a symmetric turnout comprising two side rails. The invention has the beneficial effects that the turnout can satisfy the safe running of subway and light rail vehicles between a main line and a stop line, meets relative technical standards and safety requirements of the urban rail transit engineering, highlights the advantages of safety, reliability, convenience in manufacture, laying, construction maintenance and protection and the like. By the adoption of the invention, turnout investment can be reduced, and the length of auxiliary lines can be shortened greatly, and thus civil work investment can be reduced greatly, construction difficulty can be lowered, and construction risk can be decreased.
Description
Technical field
The present invention relates to No. 4.5 bilateral turnouts of a kind of city track traffic engineering circuit.
Background technology
City track traffic engineering is to obtain fast development in China in recent years, is mainly used in the process of city passenger transport of large conveying quantity, is to improve the block up effective means of problem of city traffic.
The metropolitan traffic jam issue of China is day by day serious, building urban track traffic, begins to take shape like Beijing, Shanghai, Guangzhou, Shenzhen etc. one after another.Some medium-sized cities such as Qingdao, Ningbo, Suzhou etc. are setting about building.Because each municipal autonomy is raised funds, the independent construction and management lacks the research and development of system and unified management, so some systems and equipment existence need to improve and perfect problem.
Stop line in the urban track traffic boost line, go out lambda line and must be connected with main track through track switch.Track switch is one of rail system visual plant, and traditional connection pattern is to select common single turnout for use.With the bilateral turnout that also has of simple turnout structure basically identical, bilateral turnout is meant the main line direction to two side line symmetric part of matrix, and branched line branches off two track switch angles that from the main line direction and equates that its theoretical centre of frog is on the extended line of main line center line.Each parts of bilateral turnout are all by frog angle bisector symmetric arrays, and two connection lines are same radius curve, do not have directly to or the branch of side direction, therefore two side direction service conditions are identical.The bilateral turnout that China state iron is laid mainly contains number No. 9, No. 6.5, No. 6 three kinds numbers, uses No. 6 bilateral turnouts in the majority at present, is used for the marshalling yard hump head, existing ripe manufacturing, laying, maintenance experience.
Stop line in city track traffic engineering or go out on lambda line and the position that main track is connected; If directly use the bilateral turnout of existing No. 9, No. 6.5, No. 6 three kinds of numbers numbers in the present state iron; When being connected with main track; One group of reverse curve all need be set; This has just prolonged connection line; Worsened the circuit service condition simultaneously; Do not reach and shorten stop line or the line length of coming in and going out; The switch area circuit is longer; Need the quantity of track switch more, construction investment and engineering risk be also bigger, the engineering construction difficulty.
Summary of the invention
To the problem that exists in the above-mentioned technology; The purpose of this invention is to provide No. 4.5 bilateral turnouts of a kind of city track traffic engineering circuit; Be beneficial to reduce construction costs; Satisfy the correlation technique standard and the safety requirements of city rail engineering; Improve safety, reliability, be convenient to manufacturing, laying, construction, maintenance and maintenance simultaneously.
For realizing above-mentioned purpose; The technical scheme that the present invention adopts provides No. 4.5 bilateral turnouts of a kind of city track traffic engineering circuit; This track switch is arranged on the parking line track of underground cable in the rail engineering of city; Wherein: the structure of said bilateral turnout includes one group of railway switch, one group of railway frog, connects rail; One group of railway switch is connected with one group of railway frog through connecting rail, forms the bilateral turnout that a pair has two side thigh tracks.
Effect of the present invention is that this bilateral turnout should possess following function and characteristics:
Adopt No. 4.5 bilateral turnout, can realize being connected with the main track straight line, making circuit is the smooth-going line length that shortened to greatest extent again, reaches optimum efficiency.
4.5 number bilateral turnout can replace the function of two groups of simple turnouts, saves track switch and railway roadbed cost; Reduce stop line length, shorten station structure length, reduce difficulty of construction, reduce engineering risk, reduce the civil works cost; Shorten the time of vehicle turnover stop line, improve operational efficiency; Switch adopts the manufacturing of AT rail, heightens tongue intensity, guarantees that track switch has enough abrasion resistancies and stability;
Switch structure adopts standard component, general part as far as possible, is convenient to manufacturing, laying, maintenance and reduces standby redundancy; The sub rail foundation of track switch adopts the short sleeper of steel concrete, and solid concrete roabed satisfies the track engineering requirement.
Description of drawings
Fig. 1 is a rail switch structural representation of the present invention;
Fig. 2 is the railway switch F-F sectional elevation of Fig. 1;
Fig. 3 is the stock rail rail brace E-E sectional view of Fig. 1;
Fig. 4 is, Fig. 5 is stock rail of the present invention, side direction most advanced and sophisticated, draw rod positions concerns schematic cross section;
Fig. 6 is the side direction heel of switch rail splice bar interval iron fixed structure enlarged drawing of Fig. 1;
Fig. 7 is the side direction heel of switch rail splice bar interval iron fixed structure M-M sectional elevation of Fig. 1;
Fig. 8 is a railway frog structural representation of the present invention;
Fig. 9 is stock rail and the grooved guard rail B-B sectional view of Fig. 1;
Figure 10 is a grooved guard rail section enlarged diagram.
Among the figure:
1, railway switch 2, connection rail 3, railway frog 4, the point of switch 5, stock rail
6, side direction tongue 7, toe end of frog 8, heel end of frog 9, pull bar 10, rail brace
11, grooved guard rail 12, side direction heel of switch rail splice bar interval iron structure
The specific embodiment
In conjunction with accompanying drawing No. 4.5 bilateral turnout structures of city track traffic engineering circuit of the present invention are illustrated.
No. 4.5 bilateral turnouts of city track traffic engineering circuit of the present invention; This track switch is arranged on the parking line track of underground cable in the rail engineering of city; The structure of said bilateral turnout includes one group of railway switch 1, one group of railway frog 3, connects rail 2; One group of railway switch 1 is connected with one group of railway frog through connecting rail 2, forms the bilateral turnout that a pair has two side thigh tracks.Be 12 ° 40 ' 49.4 between two side thigh tracks " angle, guide vehicle into two different directions through two side thigh tracks of said bilateral turnout.
Said railway switch 1 comprises two stock rails 5, two side direction tongues 6, two pull bars 9, as shown in Figure 1; Two side direction tongues 6 are located at respectively between two stock rails 5, and wherein side direction tongue is connected with first pull bar 9 along stretching 430mm place from the point of switch 4, and second pull bar 9 and first pull bar be 1200mm apart, and are connected with another root side direction tongue 6.
Said railway frog 3 is symmetrical " X " type structural members that two side thigh tracks intersect to form, and the working edge angle of " X " type crossover sites of this structural member is A=12 ° 40 ' 49.4 ", adopt circular curve type potassium steel to make.
" X " type crossover sites of said railway frog 3 is that the working edge of both sides thigh track is the circular curve type, and be connected rail 2 for circle along being connected.
Position at the inboard corresponding railway frog 3 of two stock rails of said track switch is respectively equipped with split grooved guard rail 11; The split grooved of guard rail 11 is the guard rail flangeway that the cross section is " U " shape; The width of guard rail flangeway is 52mm, and the end face of grooved guard rail 11 exceeds the tread face 12mm of stock rail.
No. 4.5 bilateral turnout complex structures of city track traffic engineering circuit of the present invention, wherein railway switch 1 is one of critical component, comprises two stock rails 5, two side direction tongues 6, is related to the safety and the durability of No. 4.5 bilateral turnouts.The structure of concrete No. 4.5 bilateral turnout side direction tongues is achieved in that
(1) the side direction tongue of turnout switch adopts the manufacturing of 60AT rail; The plane pattern adopts the hemisection line style; The side direction tongue that is railway switch is the circular curve type; Tangent with stock rail; Intensity for the tip that guarantees side direction tongue 6; During manufacturing the end of the point of switch less than 5mm thickness reamed, form the side direction tongue of final practical application.The tip of side direction tongue 6 is adopted and is hidden sharp structure; When the sharp structure in so-called Tibetan is exactly this track switch manufacturing; In the most advanced and sophisticated joint place of stock rail 5 with side direction tongue 6; Stock rail 5 is cut partial application; Reserve certain space for side direction tongue 6; Thereby can allow the thicker of side direction tongue 6 manufacturings, increase the intensity of side direction tongue 6.In addition; Hide sharp structure and be meant that the rail level in the side direction tongue 6 most advanced and sophisticated 50mm scopes is lower than the rail level of stock rail 5; Wheel tread acts on the rail level of stock rail 5 like this; Under the rail level of side direction tongue 6 most advanced and sophisticated plant stock rails 5; Just maintain an equal level until the 50mm place with stock rail 5; Just contact, play a protective role with wheel.Side direction heel of switch rail splice bar interval iron structure 12 adopts movable joint structure, as shown in Figure 6.The length of side direction tongue 6 is 4597mm; The heel end alignment of side direction tongue 6;
(2) the side direction tongue is provided with a towing point, and the side direction tongue is 152mm in the first pull bar place traverse; As shown in Figure 1, realize the folding of side direction tongue 6 with the stock rail 5 of track switch, realize vehicle is introduced the purpose of the side direction station track of two different directions through affecting pull bar 9.
(3) for strengthening stock rail stability, prevent that stock rail from turning up, at stock rail arranged outside rail brace 10, as shown in Figure 7.
Have enough intensity in order to ensure No. 4.5 bilateral turnouts of city track traffic engineering circuit, adopt Finite Element that its critical component has been carried out intensity and calculate and check, verify that its structure satisfies instructions for use.Proposed strong technical support for No. 4.5 bilateral turnout designs of city track traffic engineering circuit.
Safety in operation, stability inspection to No. 4.5 bilateral turnouts of city track traffic engineering circuit of the present invention are calculated:
Before track switch is always schemed design, at first determine its design parameters permissible value, parameters can not surpass the regulation permissible value when track switch is designed, and calculates through inspection and satisfies design parameter requirements.
Confirming of design parameters:
ω
0＝0.65km
2/h
2
α
0＝0.6m/s
2
β
0＝0.3～0.4m/s
3
In the formula: ω
0-kinetic energy rejection;
α
0-unbalanced centrifugal acceleration;
β
0Variability during-centrifugal acceleration;
The km-parasang, kilometer;
H-chronomere, hour;
The m-parasang, rice;
S-chronomere, second.
Key dimension of the present invention and technical standard
(1) track switch key dimension, as shown in Figure 2,
Radius of lead curve 150mm;
Side direction is through speed 30km/h;
Total length of turnout L=17295mm;
Preceding long a=8955mm;
The long b=8340mm in back;
Frog angle: 12 ° 40 ' 49.4 ".
(2) main technical standards
Not balanced centrifugal acceleration: α=0.463m/s
2
Owe superelevation h=68.2mm;
Not balanced centrifugal acceleration increment: β=0.246m/s
3
The side direction tongue angle of shock is 1 ° 8 ' 58 ", kinetic energy rejection: ω=0.362km
2/ h
2
(3) be respectively equipped with grooved guard rail 11 in the inboard of two stock rails of said track switch at the position of corresponding railway frog 3; As shown in Figure 8; The cross section of this grooved guard rail is " U " shape; Form the guard rail flangeway; The width of guard rail flangeway is 52mm; Be convenient to reconcile up and down, can guarantee accurately that the end face of grooved guard rail exceeds stock rail tread face 12mm.Guard rail 11 length are 1484+1516mm, and its cross section is " U " shape, form the guard rail flangeway, and the width of guard rail flangeway is 52mm, and the setting height(from bottom) of guard rail 11 guarantees that the end face of guard rail 11 exceeds the end face 12mm of said stock rail.Guard rail adopts and separates adjustable grooved guard rail 11; Like Fig. 8, shown in Figure 9; The cross section of this grooved guard rail 11 is " U " type; Its flangeway is designed with certain width; Can be convenient to the guard rail up-down adjustment; Thereby can guarantee accurately that the guard rail end face exceeds stock rail 12mm, make guard rail reach the effect that the best protection wheel does not derail and slides down.
(4) fastener adopts DT VI 2 type elasticity separated rail fastenings.
(5) rail and railway frog are provided with the rubber mat plate that thickness is 12mm for 3 times, and rubber mat plate is divided into the iron chair of 16mm.
(6) sub rail foundation is the short sleeper type solid concrete roabed of steel concrete.
Short sleeper concrete class is C50, short pre-buried stainless steel sleeve pipe of sleeper and nylon sleeve.
(7) by the track circuit design is arranged, the present invention can satisfy traditional fixed obturation modes, can satisfy the needs of movable block standard again.
(3) other
(1) guard rail adopts and separates adjustable grooved guard rail structure, and the guard rail end face exceeds stock rail 12mm, as shown in Figure 4; The guard rail flangeway width is 52mm;
(2) fastener adopts DT VI 2 type elasticity separated rail fastenings, particular component particular design;
(3) under rail and the manganese fork the thick rubber mat plate of 12mm is set, iron chair is divided into the 16mm rubber mat plate;
(4) sub rail foundation is the short sleeper type solid concrete roabed of steel concrete;
Short sleeper concrete class is C50, short pre-buried stainless steel sleeve pipe of sleeper and nylon sleeve;
(5) by the track circuit design is arranged, the design presses the inaccessible design of fixed, takes into account the needs of movable block simultaneously.
Describe in the face of stressing conditions in the present invention's employing down:
Track switch is one of weak link in the orbital facilities; No. 4.5 bilateral turnout complex structures of city track traffic engineering circuit particularly; Vehicle through the time cause that track switch impacts and vibration, cause critical piece such as tongue, slide plate to shorten application life, maintenance load increases.
After No. 4.5 bilateral turnout key stressed members of city track traffic engineering circuit carried out intensity calculating, conclusion was that intensity is qualified, satisfies instructions for use.
In order to ensure No. 4.5 bilateral turnout security of operation of city track traffic engineering circuit, on the basis that theory inspection is calculated, following points for attention are proposed for the processing and manufacturing of No. 4.5 bilateral turnouts of city track traffic engineering circuit, laying, operation, maintenance etc.:
1. position stress such as side direction tongue bottom, rail jaw and rail amine bolt hole are bigger, should improve parts surface fineness, reduce the package size tolerance, stop various manufacturings, assembling defective.
2. improve side direction tongue work plane geometric accuracy, improve between tongue end face and wheel tread contact relation, the raising vehicle smoothness.
3. plan-position and the physical dimension that should guarantee each parts when track switch is laid are in management value scope, particularly directly to contraposition amount mutually and the stock rail and the side direction switch point housing of tongue and side direction tongue.
4. after track switch is pulled operation into, should regularly carry out the maintenance of critical component by the user's manual requirement.
Adopt No. 4.5 bilateral turnouts of city track traffic engineering circuit, can replace two groups of simple turnouts to use.Its effect is not only to save the track switch investment, and can significantly shorten boost line length, saves the civil works investment greatly, reduces difficulty of construction, reduces engineering risk.4.5 number bilateral turnout having a extensive future in city track traffic engineering.
No. 4.5 bilateral turnouts of city track traffic engineering circuit of the present invention possess the functional requirement of city track traffic engineering track switch; Satisfy the safety traffic between main track and stop line of subway and light rail vehicle; Satisfy the correlation technique standard and the safety requirements of city rail engineering; Give prominence to safety, reliability, and be convenient to advantages such as manufacturing, laying, construction, maintenance and maintenance.Not only can save the track switch investment, and can significantly shorten boost line length, save the civil works investment greatly, reduce difficulty of construction, reduce engineering risk.
Claims (5)
1. No. 4.5 bilateral turnouts of a city track traffic engineering circuit; This track switch is arranged on the parking line track of underground cable in the rail engineering of city; It is characterized in that: the structure of said bilateral turnout includes one group of railway switch (1), connects rail (2), one group of railway frog (3); One group of railway switch (1) is connected with one group of railway frog through connecting rail (2), forms the bilateral turnout that a pair has two side thigh tracks.
2. according to No. 4.5 bilateral turnouts of the city track traffic engineering line track described in the claim 1, it is characterized in that: said railway switch (1) comprises two stock rails (5), two side direction tongues (6), two pull bars (9); Two side direction tongues (6) are located at respectively between two stock rails; Wherein a side direction tongue (6) is connected with first pull bar (9) along stretching the 430mm place from the point of switch (4); Second pull bar (9) and first pull bar be at a distance of 1200mm, and be connected with another root side direction tongue (6).
3. according to No. 4.5 bilateral turnouts of the city track traffic engineering line track described in the claim 1; It is characterized in that: said railway frog (3) is the symmetrical " X " type structural member that two side thigh tracks intersect to form, and the working edge angle of " X " type crossover sites of this structural member is A=12 ° 40 ' 49.4 ".
4. according to No. 4.5 bilateral turnouts of the city track traffic engineering line track described in the claim 1, it is characterized in that: " X " type crossover sites of said railway frog (3) is that the working edge of both sides thigh track is the circular curve type, and be connected rail (2) for circle along being connected.
5. according to No. 4.5 bilateral turnouts of the city track traffic engineering line track described in the claim 1; It is characterized in that: the position at the inboard corresponding railway frog (3) of two stock rails of said track switch is respectively equipped with split grooved guard rail (11); The split grooved of guard rail (11) is the guard rail flangeway that the cross section is " U " shape; The width of guard rail flangeway is 52mm, and the end face of grooved guard rail (11) exceeds the tread face 12mm of stock rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110213581 CN102304882B (en) | 2011-08-16 | 2011-08-16 | Line rail symmetric turnout No 4.5 in urban rail transit engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110213581 CN102304882B (en) | 2011-08-16 | 2011-08-16 | Line rail symmetric turnout No 4.5 in urban rail transit engineering |
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| Publication Number | Publication Date |
|---|---|
| CN102304882A true CN102304882A (en) | 2012-01-04 |
| CN102304882B CN102304882B (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110213581 Active CN102304882B (en) | 2011-08-16 | 2011-08-16 | Line rail symmetric turnout No 4.5 in urban rail transit engineering |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105468809A (en) * | 2015-09-14 | 2016-04-06 | 北方工业大学 | Subway station wiring system and subway plane design method |
| CN107805980A (en) * | 2017-12-26 | 2018-03-16 | 中铁宝桥集团有限公司 | A kind of railway switch is with slope climbing type tongue and its with end structure |
| CN111364295A (en) * | 2020-04-13 | 2020-07-03 | 中国铁建重工集团股份有限公司 | Switch structure and track system |
| CN117195381A (en) * | 2023-11-07 | 2023-12-08 | 中铁工程设计咨询集团有限公司 | Method, device, equipment and medium for designing large-number switch crossing crossover |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1472391A (en) * | 2003-07-01 | 2004-02-04 | 中铁宝桥股份有限公司 | Integral optimization for switch parts |
| CN201305797Y (en) * | 2008-11-25 | 2009-09-09 | 鞍钢集团矿业公司 | Narrow gauge symmetrical turnout device |
-
2011
- 2011-08-16 CN CN 201110213581 patent/CN102304882B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1472391A (en) * | 2003-07-01 | 2004-02-04 | 中铁宝桥股份有限公司 | Integral optimization for switch parts |
| CN201305797Y (en) * | 2008-11-25 | 2009-09-09 | 鞍钢集团矿业公司 | Narrow gauge symmetrical turnout device |
Non-Patent Citations (3)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105468809A (en) * | 2015-09-14 | 2016-04-06 | 北方工业大学 | Subway station wiring system and subway plane design method |
| CN105468809B (en) * | 2015-09-14 | 2018-12-07 | 北方工业大学 | Design method for subway station wiring and subway plane |
| CN107805980A (en) * | 2017-12-26 | 2018-03-16 | 中铁宝桥集团有限公司 | A kind of railway switch is with slope climbing type tongue and its with end structure |
| CN111364295A (en) * | 2020-04-13 | 2020-07-03 | 中国铁建重工集团股份有限公司 | Switch structure and track system |
| CN117195381A (en) * | 2023-11-07 | 2023-12-08 | 中铁工程设计咨询集团有限公司 | Method, device, equipment and medium for designing large-number switch crossing crossover |
| CN117195381B (en) * | 2023-11-07 | 2024-03-19 | 中铁工程设计咨询集团有限公司 | Method, device, equipment and medium for designing large-number switch crossing crossover |
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| Publication number | Publication date |
|---|---|
| CN102304882B (en) | 2013-06-19 |
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Address after: 300142 Hebei District, Zhongshan Road, No. 10, Patentee after: China Railway Design Group Limited Address before: 300142 Tianjin, Hebei District, Zhongshan Road, Hebei District No. 10 Patentee before: China Railway Third Survey and Design Institute Group Ltd. |